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diff --git a/js/src/tests/ecma_5/Object/15.2.3.7-01.js b/js/src/tests/ecma_5/Object/15.2.3.7-01.js
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+++ b/js/src/tests/ecma_5/Object/15.2.3.7-01.js
@@ -0,0 +1,137 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ */
+
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 430133;
+var summary = 'ES5 Object.defineProperties(O, Properties)';
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+assertEq("defineProperties" in Object, true);
+assertEq(Object.defineProperties.length, 2);
+
+var o, props, desc, passed;
+
+o = {};
+props =
+ {
+ a: { value: 17, enumerable: true, configurable: true, writable: true },
+ b: { value: 42, enumerable: false, configurable: false, writable: false }
+ };
+Object.defineProperties(o, props);
+assertEq("a" in o, true);
+assertEq("b" in o, true);
+desc = Object.getOwnPropertyDescriptor(o, "a");
+assertEq(desc.value, 17);
+assertEq(desc.enumerable, true);
+assertEq(desc.configurable, true);
+assertEq(desc.writable, true);
+desc = Object.getOwnPropertyDescriptor(o, "b");
+assertEq(desc.value, 42);
+assertEq(desc.enumerable, false);
+assertEq(desc.configurable, false);
+assertEq(desc.writable, false);
+
+props =
+ {
+ c: { value: NaN, enumerable: false, configurable: true, writable: true },
+ b: { value: 44 }
+ };
+var error = "before";
+try
+{
+ Object.defineProperties(o, props);
+ error = "no exception thrown";
+}
+catch (e)
+{
+ if (e instanceof TypeError)
+ error = "typeerror";
+ else
+ error = "bad exception: " + e;
+}
+assertEq(error, "typeerror", "didn't throw or threw wrongly");
+assertEq("c" in o, true, "new property added");
+assertEq(o.b, 42, "old property value preserved");
+
+function Properties() { }
+Properties.prototype = { b: { value: 42, enumerable: true } };
+props = new Properties();
+Object.defineProperty(props, "a", { enumerable: false });
+o = {};
+Object.defineProperties(o, props);
+assertEq("a" in o, false);
+assertEq(Object.getOwnPropertyDescriptor(o, "a"), undefined,
+ "Object.defineProperties(O, Properties) should only use enumerable " +
+ "properties on Properties");
+assertEq("b" in o, false);
+assertEq(Object.getOwnPropertyDescriptor(o, "b"), undefined,
+ "Object.defineProperties(O, Properties) should only use enumerable " +
+ "properties directly on Properties");
+
+Number.prototype.foo = { value: 17, enumerable: true };
+Boolean.prototype.bar = { value: 8675309, enumerable: true };
+String.prototype.quux = { value: "Are you HAPPY yet?", enumerable: true };
+o = {};
+Object.defineProperties(o, 5); // ToObject only throws for null/undefined
+assertEq("foo" in o, false, "foo is not an enumerable own property");
+Object.defineProperties(o, false);
+assertEq("bar" in o, false, "bar is not an enumerable own property");
+Object.defineProperties(o, "");
+assertEq("quux" in o, false, "quux is not an enumerable own property");
+
+error = "before";
+try
+{
+ Object.defineProperties(o, "1");
+}
+catch (e)
+{
+ if (e instanceof TypeError)
+ error = "typeerror";
+ else
+ error = "bad exception: " + e;
+}
+assertEq(error, "typeerror",
+ "should throw on Properties == '1' due to '1'[0] not being a " +
+ "property descriptor");
+
+error = "before";
+try
+{
+ Object.defineProperties(o, null);
+}
+catch (e)
+{
+ if (e instanceof TypeError)
+ error = "typeerror";
+ else
+ error = "bad exception: " + e;
+}
+assertEq(error, "typeerror", "should throw on Properties == null");
+
+error = "before";
+try
+{
+ Object.defineProperties(o, undefined);
+}
+catch (e)
+{
+ if (e instanceof TypeError)
+ error = "typeerror";
+ else
+ error = "bad exception: " + e;
+}
+assertEq(error, "typeerror", "should throw on Properties == undefined");
+
+/******************************************************************************/
+
+reportCompare(true, true);
+
+print("All tests passed!");